Titan's upper atmosphere - Structure and ultraviolet emissions

Abstract

An analysis is conducted of the composition and thermal structure of Titan's upper atmosphere, and the relative importance of airglow-excitation processes, on the basis of Voyager 1 UV spectrometer data for solar occultation and airglow. Attention is also given to the Smith et al. (1982) optical depth profiles for the evening terminator, entrance occultation, and asymptotic temperature. A magnetospheric power input figure is obtained that is 25 times smaller than the initial estimate by Strobel and Shemansky (1982).